<!DOCTYPE html>
<meta charset="utf-8">

<div class="fuchsiabox"></div>
<div class="filter"></div>

<style>
.fuchsiabox {
  position: absolute;
  background: fuchsia;
  width: 100px;
  height: 100px;
  top: 100px;
  left: 60px;
}
.filter {
  position: absolute;
  width: 100px;
  height: 100px;
  top: 100px;
  left: 60px;
  backdrop-filter: invert(1);
}
</style>
